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UNITED STATES PATENT OFFICE.'

A. L. FULLER, OF CLINTON, MASSACHUSETTS.

LOOM.

Specification of Letters Patent No. 16,271, dated December 23, 1856.

To all whom it may concern:

Be it known that I, ANDREW L. FULLER, of Clinton, in the county ofVorcester and State of Massachusetts, have invented certain new anduseful Improvements in Looms; and I do hereby declare that the followingis a full, clear, and exact description of the construction andoperation of the same, reference being had to the' accompanyingdrawings, in which- Figure l is a side view, Fig. 2 is a top view, Fig.3 shows a section of the pattern chain, ngers, and guard; and F ig. 4shows the connection of the slide which shifts the pattern-chain, withthe stop F hereinafter to be described; the same letters denoting thesame parts wherever they occur.

The object of my improvements is to control the feed-motion or take-upin relation to the change of pattern or fmeness of beat required, and ismore particularly applicable to the form of loom known as the Blanchardloom, (to which the following description applies,) and also to otherswhen weaving two or more thicknesses in dierentparts or when a variationin the number of picks to the inch is wanted to be made.

To construct my improvements see drawings in which A is the cloth roll,B is a ne ratchet wheel with pinion attached gearing into wheel on A,the ratchet B receiving its motion by a catch on a connecting rodattached to the lever C, the lever C being operated by cam D at everypick of the loom, so as to give motion to B and depending on the springE to return it to place, near C place the stop 'F so that its notchesshall control the amount of motion given C by the spring E by stoppingits return more or less as may be wanted, thus preventing its takingmore hold on the ratchet B than is wanted, the notches on Fcorresponding to the variety of picks wanted in the fabric. To the stopF attach the rod G connecting to the lever H, to which is attached therod I extending to the fore part of the loom at a convenient place forthe operator to work the stop F when necessary. The fingers P andpattern chain O may be of the usual form, the pattern-chain having two(sets of pins or) patterns, one passing between the ngers while theother operates, the position of the pattern-chain being controlled bythe slide N to hold either pattern in play, above the fingers P placethe guard R which is so arranged that by turning it into the positionshown in dotted lines in Fig. 3 it raises the ngers P so as to allow thepattern-chain to be shifted sidewise, after which the fingers are letdown again. The slide N is connected to the lever' M, the lever M beingfast to the rod or shaft K, the rod K having a flexible arm L which isconnected to the stop F, t-he arm L being st-iif enough to move the stopF and yet flexible enough to allow the stop to be move/d by the rods Iand Gr without moving the rod K and slide N, this flexibility alsoallows the pattern to be shifted without regardrto the position of thelever C somthat when the cam moves the lever the spring of the arm Lmoves the stop to its place. The other parts of the loom not describedmay be of most any of the common patterns and modes of construction andon that account it is not deemed necessary to show or describe themparticularly.

The operation of my improvements will be more clear perhaps by referringto that class of fabrics in which two thicknesses are woven at once fora part of their length then changing to a single thickness as bags etc.,the loom in weaving the single part is arranged to feed say about twentypicks to the inch with the lever C at full play, and when it is wishedto change to double, lifting the lingers P by the guard R move the slideN to the double pattern this shifts the feed to al liner one say aboutfifty picks to the inch making the body of the bag part finer than thesingle, and when the proper length is woven the pattern and slide arechanged back again to single work and coarser feed, and in some cases itmay be desirable to weave a few picks ine before shifting to doublework, this is done by the weaver holding the stop E by the rod I a fewpicks before he shifts the pattern, and by similar means he may weave afew picks fine after shifting from double to single work.

That my improvement-s may be applied in a variety of ways is evident asindeed no two patterns of looms will require the same form, and thealmost infinite variety of fabrics that can be made and in which theywill act to advantage will suggest the part-icular form and arrangementadapted to each kind. I do not claim controlling the feed or take upmotion of a loom as has heretofore been done but only in connection withthe devices and arrangement herein before described.

But what I claim as new and desire to secure by Letters Patent is l. Iclaim regulating or changing the feed by governing the action of thelever C by means of the graduated stop F or its equivalent in connectionwith the change of slide and pattern in the manner and forthe purposesas above set forth and described or any other substantially the same.

2. I claim the guard R for lifting the fingers when constructed andoperating in the manner and for the purposes described.

3. I claim the flexible connection between the stop F and the rod orslide to allow motion to the stop without moving the slide as describedor any other substantially the saine.

A. L. FULLER. 1Witnesses BENJAMIN ARNOLD, JAS. G. ARNOLD.

